AgBiO2
AgBiO2 is a semiconducting silver bismuth oxide that is considered a promising candidate for experimental synthesis due to its favorable thermodynamic stability.
About AgBiO2
AgBiO2 is a ternary oxide composed of silver, bismuth, and oxygen. As a semiconducting material, it represents an intriguing candidate for electronic and optoelectronic research, characterized by a structural composition that positions it as a viable target for experimental synthesis.
Its status as a near-hull phase suggests that it exists in a favorable energy landscape, making it a promising subject for further investigation. With numerous structural reports across databases, it remains a significant material of interest for those exploring complex oxide systems.
Key Properties
Cross-validated computational properties for AgBiO2, aggregated across 4 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of AgBiO2. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for AgBiO2, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| P21/m (No. 11) | monoclinic | 1.42 | 0.0025 | -5.305 | 8.14 |
| P21/m (No. 11) | monoclinic | 1.30 | 0.0041 | -0.911 | — |
| C2/m (No. 12) | monoclinic | 1.25 | 0.0262 | -5.281 | 7.58 |
| C2/m (No. 12) | monoclinic | 1.21 | 0.0346 | -0.881 | — |
| P21/m (No. 11) | monoclinic | 1.69 | 0.0363 | -5.271 | 7.70 |
| P21/m (No. 11) | monoclinic | 1.49 | 0.0408 | -0.875 | — |
| R-3m (No. 166) | trigonal | 0.96 | 0.0451 | -5.262 | 7.64 |
| P63/mmc (No. 194) | hexagonal | 0.78 | 0.0452 | -5.262 | 7.64 |
| R-3m (No. 166) | trigonal | 0.99 | 0.0522 | -0.863 | — |
| P63/mmc (No. 194) | hexagonal | 0.81 | 0.0524 | -0.863 | — |
| — | — | 0.96 | 0.1087 | -0.906 | — |
| — | — | 0.00 | 0.1856 | -0.829 | — |
Applications
Where AgBiO2 is used.
Frequently Asked Questions
Common questions about AgBiO2, answered from cross-validated data.
What is AgBiO2?
AgBiO2 is a semiconducting silver bismuth oxide that is considered a promising candidate for experimental synthesis due to its favorable thermodynamic stability.
What is AgBiO2 used for?
What is the band gap of AgBiO2?
Is AgBiO2 a metal, semiconductor, or insulator?
Is AgBiO2 thermodynamically stable?
What is the crystal structure of AgBiO2?
What is the density of AgBiO2?
How many polymorphs of AgBiO2 are known?
What elements does AgBiO2 contain?
Where does the data for AgBiO2 come from?
How It Compares
As a unique ternary oxide, AgBiO2 occupies a specialized niche in materials science. While it does not share its immediate class with other listed compounds, it stands out as a structurally rich semiconductor that bridges the gap between simple binary oxides and more complex multinary systems.
Data sources & attribution
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
- oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
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